Radon testing
48-hour continuous radon monitor placed by an IL-licensed measurement pro.
WATERPROOFING DIVISION
Radon Mitigation in DuPage County.
Testing, active soil depressurization, vent pipe install, and ongoing monitoring. Illinois-licensed mitigation contractors — DuPage averages above EPA action level.
WHAT'S INCLUDED
Every visit, every time.
Active soil depressurization
Suction point cored in the slab, fan-driven venting above the roofline.
Vent pipe installation
4" PVC routed exterior or interior, terminated above the roofline.
System monitoring
Visible u-tube manometer + post-install retest to confirm reduction.
HOW IT WORKS
Our process — 4 steps.
Initial test
48-hour test, lab-analyzed report with the radon level in pCi/L.
Mitigation plan
Suction-point location, pipe route, fan model — drawn before install.
Install
Most systems installed in one day. Manometer mounted at the panel.
Post-install retest
Free 48-hour retest 24 hours after install — confirms < 4 pCi/L.
WHY SUNSET FOR RADON MITIGATION
Three reasons it's worth the call.
IL-licensed mitigation
Illinois IEMA-licensed mitigation pros — required for documented results.
Post-install retest free
We confirm reduction with a real follow-up test, not a guarantee on paper.
Above-roofline vent
Code-compliant termination — not the cheaper sidewall shortcut.
RECENT WORK
Radon Mitigation projects nearby.
QUESTIONS · ANSWERED
Radon Mitigation questions, answered.
How do I know if I really have a water problem or just humidity?
A real water issue shows up after heavy rain — water at the floor edges, dark stains on the walls, or seepage at the corners. Pure humidity is musty smell, occasional summer dampness, and clammy walls without visible water. We can tell which it is during a 30-minute site visit.
How long does the typical fix take?
Interior drain tile + sump installation: 2-3 days. Exterior membrane waterproofing: 4-7 days including perimeter excavation and landscape restoration. Sump pump swap-out: same-day. Foundation crack repair: 1 day per major crack.
What kind of warranty do you offer?
Interior drain tile + sump systems: 25-year transferable warranty. Exterior membranes: 10-15 years. Foundation crack repair: 5-10 years depending on the crack type. Drainage repairs: 5 years. We put the warranty in writing on the contract.
Will the work damage my landscape?
Interior work doesn't touch the yard at all. Exterior membrane work requires perimeter excavation — usually 3-5 feet out from the foundation. We hand-dig around irrigation, photograph plantings before we start, and restore the landscape on the same crew rotation. Plant-replacement guarantee covers any losses.
Do you offer financing?
Yes — for projects $5,000 and up. Most homeowners qualify for 12 or 24-month deferred-interest plans through our lending partner. Application takes 10 minutes online, approval is usually same-day.
CUSTOMERS ALSO ASK
Often combined with waterproofing.
READY WHEN YOU ARE
Get started on your radon mitigation.
Free estimate within 48 hours. No high-pressure sales — just a clear quote.